JT/JT 420HDR 13/47 Chain Kit (OEM ratio) reinforced - standard steel sprocket
Designed for mopeds and small urban motorcycles, this JT DRIVE CHAIN kit maintains the original ratio of 13/47 for a straightforward and hassle-free replacement. The 420 pitch chain features a black/steel finish and incorporates XS-Ring seals, which minimize lubricant loss and provide better sealing of the links compared to a non-sealed chain.
- Type: JT HDR Chain, Racing quality
- Pitch: 420
- Seals: XS-Ring
- Sprocket: Standard steel
- Ratio: 13/47 (OEM)
- Color: Black/Steel
The reinforced kit is aimed at riders looking for a robust solution for urban use, both for restoration and for more intensive use. The standard steel sprocket provides wear resistance and ease of maintenance, while the HDR chain with XS-Ring seals contributes to smoother transmission and controlled wear if maintenance (lubrication and adjustment) is adhered to.
Example compatibilities: RIEJU RS2 50 MATRIX PRO (2003), RIEJU RS1 50 (2003). Installation and adjustment should be carried out according to manufacturer recommendations to ensure safety and longevity.
